Sliding oil cylinder inclined hole sealing device with anti-scraping function

Abstract

The utility model relates to the technical field of oil cylinder inclined hole sealing, and discloses a sliding oil cylinder inclined hole sealing device with an anti-scraping function, which comprises an oil cylinder, an inclined pipe is arranged on the oil cylinder, an oil pipe is sleeved on the outer surface of the right end of the inclined pipe in a sliding manner, and a sealing device is arranged on the right side of the oil cylinder. According to the sliding oil cylinder inclined hole sealing device with the anti-scraping function, by arranging the fixing shell, the sliding rod, the clamping plate, the circular ring, a first threaded sleeve, a second threaded sleeve, a third threaded sleeve, a fourth threaded sleeve, a threaded rod and a connecting rod, the threaded rod is rotated, the circular ring moves rightwards, the clamping plate can extrude the outer surface of an oil pipe, the oil pipe and an inclined pipe are connected more tightly, and the service life of the oil pipe is prolonged. And a third threaded sleeve is in threaded connection with a fourth threaded sleeve, and a second threaded sleeve is in threaded connection with a first threaded sleeve, so that the second sleeve protects the fixing shell, meanwhile, the joint of the oil pipe and the inclined pipe is protected, and the joint of the oil pipe and the inclined pipe is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder inclined hole sealing, in particular to a sliding oil cylinder inclined hole sealing device with an anti-scratch function. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides. The hydraulic cylinder is basically composed of an oil guide inclined hole, a cylinder barrel, a cylinder head, a piston, a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application scenario, and other devices are indispensable.

[0003] In the prior art, the external oil pipe is generally directly connected to the oil inlet inclined pipe, and then locked with a wire ring, but it still has the following disadvantages: the wire ring connects the external oil pipe and the oil inlet inclined pipe, but the protection of the connection is poor, and the connection is easily scratched, causing oil leakage. To this end, we propose a sliding oil cylinder inclined hole sealing device with anti-scratch function to solve this problem. Utility Model Content

[0004] The utility model aims to provide a sliding oil cylinder inclined hole sealing device with anti-scratch function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a sliding oil cylinder oblique hole sealing device with anti-scratch function, comprising an oil cylinder, an oblique tube is arranged on the oil cylinder, an oil tube is arranged on the sliding sleeve of the outer surface of the right end of the oblique tube, a sealing device is arranged on the right side of the oil cylinder, and the sealing device comprises a sealing part;

[0006] The sealing part comprises a fixed shell, a sliding rod, a circular ring and a connecting rod, wherein the fixed shell is fixedly sleeved on the outer surface of the inclined tube, the circular ring is slidably sleeved on the outer surface of the inclined tube, the left end of the connecting rod is hinged to the right end surface of the circular ring, and the right end of the connecting rod is hinged to the outer surface of the sliding rod;

[0007] A protective part is arranged on the right side of the oil cylinder;

[0008] The protective part includes a second threaded sleeve, an extrusion plate, a third threaded sleeve and a fourth threaded sleeve. The outer surface of the third threaded sleeve is fixedly connected to the inner wall of the second threaded sleeve. The fourth threaded sleeve is fixedly sleeved on the outer surface of the fixed shell. The outer surface of the extrusion plate is fixedly connected to the inner wall of the second threaded sleeve.

[0009] A further improvement is that the sealing part also includes a screw and a clamping plate, the cross section of the clamping plate is arc-shaped, and the inner wall of the clamping plate is provided with oblique teeth to improve the sealing performance between the oil pipe and the oblique pipe.

[0010] A further improvement is that a through groove is provided on the outer surface of the fixed shell, and the outer surface of the sliding rod extends into the through groove and is slidably connected to the inner wall of the through groove. By arranging the sliding rod and the clamping plate, it is convenient to clamp the oil pipe.

[0011] A further improvement is that the outer surface of the right end of the screw rotates through the bearing to penetrate the left end surface of the fixed shell and extend to the inside of the fixed shell, and the thread of the outer surface of the right end of the screw penetrates the left end surface of the fixed shell and extends to the inside of the fixed shell. By arranging a screw, a ring and a connecting rod, the screw can be rotated to pull the splint to clamp the oil pipe.

[0012] A further improvement is that the sealing part also includes a first threaded sleeve and an elastic extrusion plate, the left end of the elastic extrusion plate extends into the interior of the second threaded sleeve, the outer surface of the left end of the elastic extrusion plate is fixedly connected to the inner wall of the second threaded sleeve, and the inner wall of the elastic extrusion plate is in extrusion contact with the outer surface of the oil pipe. By setting the elastic extrusion plate, it is convenient to clamp the outer surface of the oil pipe.

[0013] A further improvement is that the inner wall of the third threaded sleeve is meshedly connected with the outer surface of the fourth threaded sleeve, and the inner wall of the extrusion plate is in extrusion contact with the outer surface of the elastic extrusion plate. By arranging the third threaded sleeve, the fourth threaded sleeve and the extrusion plate, the second threaded sleeve is rotated so that the extrusion plate squeezes the elastic extrusion plate, thereby improving the tightness of the connection between the oil pipe and the inclined pipe.

[0014] A further improvement is that the left end face of the first threaded sleeve is fixedly connected to the right end face of the cylinder, and the outer surface of the right end of the first threaded sleeve extends into the interior of the second threaded sleeve and is threadedly connected to the inner wall of the second threaded sleeve. By setting the first threaded sleeve, the stability of the second threaded sleeve is improved, and the protection of the oil pipe and the inclined pipe is facilitated.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the sliding oil cylinder inclined hole sealing device with anti-scratch function is provided with a fixed shell, a sliding rod, a clamping plate, a ring, a first threaded sleeve, a second threaded sleeve, a third threaded sleeve, a fourth threaded sleeve, a screw and a connecting rod, and the screw is rotated to move the ring to the right, so that the clamping plate can squeeze the outer surface of the oil pipe, so that the oil pipe and the inclined pipe are connected more tightly, and the tightness of the connection between the oil pipe and the inclined pipe is improved, and the third threaded sleeve and the fourth threaded sleeve are threadedly connected, and the second threaded sleeve and the first threaded sleeve are threadedly connected. , so that the second sleeve protects the fixed shell, and at the same time protects the connection between the oil pipe and the oblique pipe to prevent the connection between the oil pipe and the oblique pipe from being scratched, and at the same time protects the sealing device; by setting an elastic extrusion plate, utilizing the elasticity of the elastic extrusion plate, the inner wall of the elastic extrusion plate is squeezed against the outer surface of the oil pipe, so that the inner wall of the oil pipe and the outer surface of the oblique pipe are squeezed, thereby improving the tightness of the connection between the oil pipe and the oblique pipe; by setting the extrusion plate, in the process of the second sleeve moving to the left, the extrusion plate is squeezed by the elastic extrusion plate, so that the elastic extrusion plate is deformed, and the elastic extrusion plate clamps the outer surface of the oil pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a sectional view of the three-dimensional structure of the sealing device of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of the structure at center;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the sealing part of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the elastic extrusion plate of the utility model.

[0021] In the figure: 1 oil cylinder, 2 sealing device, 21 sealing part, 22 protective part, 211 fixed shell, 212 sliding rod, 213 clamping plate, 214 ring, 215 screw rod, 216 connecting rod, 221 first threaded sleeve, 222 second threaded sleeve, 223 extrusion plate, 225 third threaded sleeve, 226 fourth threaded sleeve, 227 elastic extrusion plate, 3 oil pipe, 4 inclined pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a sliding oil cylinder oblique hole sealing device with anti-scratch function, comprising an oil cylinder 1, an oblique tube 4 is arranged on the oil cylinder 1, an oil pipe 3 is arranged on the sliding sleeve of the outer surface of the right end of the oblique tube 4, a sealing device 2 is arranged on the right side of the oil cylinder 1, and the sealing device 2 includes a sealing part 21;

[0024] The sealing part 21 includes a fixed shell 211, a slide rod 212, a ring 214 and a connecting rod 216. The fixed shell 211 is fixedly sleeved on the outer surface of the inclined tube 4, the ring 214 is slidably sleeved on the outer surface of the inclined tube 4, the left end of the connecting rod 216 is hinged to the right end surface of the ring 214, and the right end of the connecting rod 216 is hinged to the outer surface of the slide rod 212. The sealing part 21 also includes a screw 215 and a clamping plate 213;

[0025] The outer surface of the right end of the screw rod 215 rotates through the bearing to penetrate the left end surface of the fixed shell 211 and extend to the inside of the fixed shell 211. The outer surface of the right end of the screw rod 215 is threaded to penetrate the left end surface of the fixed shell 211 and extend to the inside of the fixed shell 211. The cross section of the clamping plate 213 is arc-shaped, and the inner wall of the clamping plate 213 is provided with oblique teeth.

[0026] A through slot is formed on the outer surface of the fixed shell 211, and the outer surface of the sliding rod 212 extends into the through slot and is slidably connected to the inner wall of the through slot;

[0027] A protection part 22 is provided on the right side of the oil cylinder 1;

[0028] The protection part 22 includes a second threaded sleeve 222, an extrusion plate 223, a third threaded sleeve 225 and a fourth threaded sleeve 226. The outer surface of the third threaded sleeve 225 is fixedly connected to the inner wall of the second threaded sleeve 222. The fourth threaded sleeve 226 is fixedly sleeved on the outer surface of the fixed shell 211. The outer surface of the extrusion plate 223 is fixedly connected to the inner wall of the second threaded sleeve 222. The sealing part 21 also includes a first threaded sleeve 221 and an elastic extrusion plate 227.

[0029] The inner wall of the third threaded sleeve 225 is meshed with the outer surface of the fourth threaded sleeve 226, and the inner wall of the extrusion plate 223 is in extrusion contact with the outer surface of the elastic extrusion plate 227. By providing the elastic extrusion plate 227, the elasticity of the elastic extrusion plate 227 is utilized to make the inner wall of the elastic extrusion plate 227 squeeze the outer surface of the oil pipe 3, so that the inner wall of the oil pipe 3 is squeezed with the outer surface of the inclined pipe 4, thereby improving the tightness of the connection between the oil pipe 3 and the inclined pipe 4.

[0030] The left end of the elastic extrusion plate 227 extends to the inside of the second threaded sleeve 222, and the outer surface of the left end of the elastic extrusion plate 227 is fixedly connected to the inner wall of the second threaded sleeve 222. The inner wall of the elastic extrusion plate 227 is in extrusion contact with the outer surface of the oil pipe 3. By setting the extrusion plate 223, when the second sleeve 222 moves to the left, the extrusion plate 223 squeezes the elastic extrusion plate 227, causing the elastic extrusion plate 227 to deform, so that the elastic extrusion plate 227 clamps the outer surface of the oil pipe 3.

[0031] The left end face of the first threaded sleeve 221 is fixedly connected to the right end face of the oil cylinder 1, and the outer surface of the right end of the first threaded sleeve 221 extends to the inside of the second threaded sleeve 222 and is threadedly connected to the inner wall of the second threaded sleeve 222. By setting the fixed shell 211, the sliding rod 212, the clamping plate 213, the ring 214, the first threaded sleeve 221, the second threaded sleeve 222, the third threaded sleeve 225, the fourth threaded sleeve 226, the screw 215 and the connecting rod 216, the screw 215 is rotated to make the ring 214 move to the right , that is, the clamping plate 213 can squeeze the outer surface of the oil pipe 3, so that the oil pipe 3 and the oblique pipe 4 are connected more tightly, and the tightness of the connection between the oil pipe 3 and the oblique pipe 4 is improved. The third threaded sleeve 225 and the fourth threaded sleeve 226 are threadedly connected, and the second threaded sleeve 222 and the first threaded sleeve 221 are threadedly connected. The second sleeve 222 protects the fixed shell 211 and protects the connection between the oil pipe 3 and the oblique pipe 4 to prevent the connection between the oil pipe 3 and the oblique pipe 4 from being scratched, and protects the sealing device 2 at the same time.

[0032] When in use, the screw rod 215 is rotated, and the screw rod 215 drives the ring 214 to move to the left. The ring 214 drives the connecting rod 216 to pull the sliding rod 212 to move, so that the clamping plate 213 clamps the outer surface of the oil pipe 3, and the second threaded sleeve 222 is rotated to move the second threaded sleeve 222 to the left, so that the third threaded sleeve 225 is threadedly connected with the outer surface of the fourth threaded sleeve 226, so that the extrusion plate 223 squeezes the elastic extrusion plate 227 to the left, so that the elastic extrusion plate 227 clamps the outer surface of the oil pipe 3.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sliding cylinder inclined hole sealing device with anti-scratch function, comprising a cylinder (1), characterized in that: The oil cylinder (1) is provided with an inclined tube (4), a sliding sleeve of an outer surface of the right end of the inclined tube (4) is provided with an oil pipe (3), and a sealing device (2) is provided on the right side of the oil cylinder (1), and the sealing device (2) comprises a sealing portion (21); The sealing portion (21) comprises a fixed shell (211), a sliding rod (212), a circular ring (214) and a connecting rod (216); the fixed shell (211) is fixedly sleeved on the outer surface of the inclined tube (4); the circular ring (214) is slidably sleeved on the outer surface of the inclined tube (4); the left end of the connecting rod (216) is hinged to the right end surface of the circular ring (214); and the right end of the connecting rod (216) is hinged to the outer surface of the sliding rod (212); A protective portion (22) is provided on the right side of the oil cylinder (1); The protection portion (22) comprises a second threaded sleeve (222), an extrusion plate (223), a third threaded sleeve (225) and a fourth threaded sleeve (226); the outer surface of the third threaded sleeve (225) is fixedly connected to the inner wall of the second threaded sleeve (222); the fourth threaded sleeve (226) is fixedly sleeved on the outer surface of the fixed shell (211); and the outer surface of the extrusion plate (223) is fixedly connected to the inner wall of the second threaded sleeve (222).

2. The sliding cylinder oblique hole sealing device with anti-scratch function according to claim 1, characterized in that: The sealing portion (21) further comprises a screw (215) and a clamping plate (213); the clamping plate (213) has an arc-shaped cross section, and the inner wall of the clamping plate (213) is provided with oblique teeth.

3. The sliding cylinder oblique hole sealing device with anti-scratch function according to claim 2, characterized in that: A through slot is formed on the outer surface of the fixed shell (211), and the outer surface of the sliding rod (212) extends into the interior of the through slot and is slidably connected to the inner wall of the through slot.

4. The sliding cylinder oblique hole sealing device with anti-scratch function according to claim 2, characterized in that: The outer surface of the right end of the screw rod (215) rotates through the bearing to penetrate the left end surface of the fixed shell (211) and extends into the interior of the fixed shell (211); the outer surface of the right end of the screw rod (215) threads through the left end surface of the fixed shell (211) and extends into the interior of the fixed shell (211).

5. The sliding cylinder oblique hole sealing device with anti-scratch function according to claim 1, characterized in that: The sealing portion (21) further comprises a first threaded sleeve (221) and an elastic extrusion plate (227); the left end of the elastic extrusion plate (227) extends into the interior of the second threaded sleeve (222); the outer surface of the left end of the elastic extrusion plate (227) is fixedly connected to the inner wall of the second threaded sleeve (222); and the inner wall of the elastic extrusion plate (227) is in extrusion contact with the outer surface of the oil pipe (3).

6. The sliding cylinder oblique hole sealing device with anti-scratch function according to claim 5, characterized in that: The inner wall of the third threaded sleeve (225) is meshedly connected with the outer surface of the fourth threaded sleeve (226), and the inner wall of the extrusion plate (223) is in extrusion contact with the outer surface of the elastic extrusion plate (227).

7. The sliding cylinder oblique hole sealing device with anti-scratch function according to claim 5, characterized in that: The left end surface of the first threaded sleeve (221) is fixedly connected to the right end surface of the oil cylinder (1); the outer surface of the right end of the first threaded sleeve (221) extends into the interior of the second threaded sleeve (222) and is threadedly connected to the inner wall of the second threaded sleeve (222).

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